[PATCH] D99759: [LoopUnroll] avoid assumption clone explosion

Nikita Popov via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Apr 9 11:36:14 PDT 2021


nikic added a comment.

Taking your example from https://bugs.llvm.org/show_bug.cgi?id=49785#c2, it seems to be scaling with about O(n^5.5) with iteration count, which is beyond all reasonable bounds. I think this needs to be mitigated at a lower level than unrolling.


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https://reviews.llvm.org/D99759



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